<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<table border="1px" style="border-collapse:separate;">
    <caption>授课表</caption>
    <tr>
        <th>序号</th>
        <th>姓名</th>
        <th>授课内容</th>
        <th>序号</th>
    </tr>
    <tr>
        <td style="text-align:center";>1</td>
        <td>伟超</td>
        <td style="text-align:center;">Redis</td>
        <td style="text-align: center;">3</td>
    </tr>
    <tr>
        <td style="text-align:center";>2</td>
        <td>晓宇</td>
        <td style="text-align:center";>全栈.............</td>
        <td style="text-align:center";>4</td>
    </tr>
    <tr>
        <td style="text-align:center";>3</td>
        <td>硕博</td>
        <td style="text-align:center";>SRE</td>
        <td style="text-align:center";>5</td>
    </tr>
</table>
<table border="1px" style="border-collapse:separate;">

    <tr>
        <td>1-1</td>
        <td colspan="3">1-2</td>

    </tr>
    <tr>
        <td>2-1</td>
        <td rowspan="3">2-2</td>
        <td colspan="2">2-3</td>
    </tr>
    <tr>
        <td>3-1</td>

        <td>3-3</td>
        <td rowspan="2">3-4</td>

    </tr>
    <tr>
        <td>4-1</td>

        <td>4-3</td>

    </tr>

    <table border="1px" style="border-collapse: collapse;">
        <caption>购物车</caption>
        <tr>
            <th>商品编号</th>
            <th>商品名称</th>
            <th>商品价格</th>
        </tr>
        <tr>
            <td>1</td>
            <td>荣耀X60</td>
            <td>2601</td>
        </tr>
        <tr>
            <td>2</td>
            <td>三折叠 怎么折都有面, 有多有面</td>
            <td>27399</td>
        </tr>
        <tr>
            <td>总价:</td>
            <td colspan="2">30000</td>
        </tr>
    </table>
</table>
</body>
</html>